Methods and apparatus for retargeting and prioritized interpolation of lens profiles. A lens profile file may include a set of lens sub-profiles. The camera body and/or settings described in the file may not exactly match that of camera body and/or settings used to capture a target image. A sub-profile processing module may perform a prioritized sub-profile sorting and interpolation method to generate an interpolated sub-profile that may be applied to the target image to correct aberrations including, but not limited to, geometric distortion, lateral chromatic aberration, and vignette. Thus, models generated for a reference camera at a variety of settings may be applied to a target image captured with the same type of lens but with a different camera and/or with different settings that are not exactly modeled in the lens profile file.
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2. The computer-implemented method as recited in claim 1, further comprising updating the lens profile file to include a new sub-profile that includes the interpolated mathematical model.
6. The computer-implemented method as recited in claim 1, wherein the two sub-profiles have values for the highest-priority shooting condition that bracket a corresponding parameter value included in the image metadata.
8. The computer-implemented method as recited in claim 1, wherein the different aberrations include geometric distortion and lateral chromatic aberration and the sub-profile metadata of each sub-profile specifies camera settings for sub-profile focal length and sub-profile focus distance.
10. The computer-implemented method as recited in claim 1, further comprising locating the two sub-profiles having the camera settings that best match the shooting conditions described by at least two of the parameters included in the image metadata, the at least two parameters describing the highest-priority image shooting condition and a second highest-priority image shooting condition according to the prioritizing.
11. The computer-implemented method as recited in claim 1, wherein the image shooting conditions include a target image focal length, target image focus distance, target image aperture, and target image sensor format factor.
13. The computer-readable storage medium as recited in claim 12, wherein the priorities of the camera settings are different for at least two of the different aberrations.
14. The computer-readable storage medium as recited in claim 12, wherein the different aberrations include at least one of geometric distortion or lateral chromatic aberration.
16. The system of claim 15, wherein the identified sub-profiles include the sub-profile metadata that matches a highest-priority image shooting condition.
17. The system of claim 15, wherein the operations further comprise presenting a user interface and receiving input via the presented user interface to initiate aberration correction in the captured image.
18. The system of claim 15, wherein the operations further comprise generating a new sub-profile for the lens profile file to include the interpolated mathematical model.
19. The system of claim 15, wherein the lens profiling module is implemented as a plug-in for, or a module in, the image processing application.
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April 12, 2010
August 2, 2022
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